{
  "resourceType": "DataElement",
  "id": "date",
  "meta": {
    "lastUpdated": "2017-04-18T21:44:43.294+00:00"
  },
  "url": "http://hl7.org/fhir/DataElement/date",
  "status": "draft",
  "experimental": true,
  "stringency": "fully-specified",
  "element": [
    {
      "id": "date",
      "path": "date",
      "short": "Primitive Type date",
      "definition": "A date or partial date (e.g. just year or year + month). There is no time zone. The format is a union of the schema types gYear, gYearMonth and date.  Dates SHALL be valid dates.",
      "min": 0,
      "max": "*",
      "constraint": [
        {
          "key": "ele-1",
          "severity": "error",
          "human": "All FHIR elements must have a @value or children",
          "expression": "hasValue() | (children().count() > id.count())",
          "xpath": "@value|f:*|h:div",
          "source": "Element"
        }
      ]
    }
  ]
}